Hmm...lets see, well my right knee is worse than my left. My lower back kills me after years of being thrown around. As of right now, I'm having a shoulder/neck problem, although I'm not sure how that happened. Fact is the years of training is starting to show it's signs. What's helped is the fact that I see my Chiropractor once a month, and I work on recognizing the signals my body sends to my brain saying.....hey, you ain't 20 anymore